Do you hold this througout crz clb to crz?
I`ve often wondered about something similar and once got interested in the idea of the speeding up to crz spd early on in the clb but then again climbing 270kts at 2,000` will be pretty much faster at FL330. thread drift?
If you could nail 280 or indeed 320 at, say by 3,000`! Ok, make it 300 dependant on WAT
anyway, if you nailed a higher speed lower down you would have the power for clb, the spd in the bag, the dist used to get to alt (as in crz clb)
less fuel used than blasting from sfc to accel alt?
but then a lesser clb rate versus more fuel used having got up to spd at a lower alt. . . or not?
There is a thing here, by doing it this way (obviously not always possible due to traffic, invariably) but you would also gain on the level out from the clb to crz - as you would already be at crz spd (thereby demanding a reduction in pwr setting to maintain that crz spd)
as opposed to hanging around in the crz (at an accel pwr setting FMS or not) waiting for the spd to increase, at a greater gff - just a thought.
Summary: Could you select 300 after T/O subject to traffic all the way to the crz FL?
GFF would be +/- 6T/hr in the climb. anyway.
So you could prolong the climb but use maybe 5T (as you`re at reduced climb rate you would gain on dist anyway, without the `wait` at crz alt for the spd to dribble up?
Last edited by Natstrackalpha; 13th May 2013 at 16:07.